CVE-2026-43992 – JunoClaw: MCP write tools exposed raw BIP-39 mnemonic as a tool-call parameter

CVE ID :CVE-2026-43992

Published : May 12, 2026, 5:16 p.m. | 41 minutes ago

Description :JunoClaw is an agentic AI platform built on Juno Network. Prior to 0.x.y-security-1, every MCP write tool (send_tokens, execute_contract, instantiate_contract, upload_wasm, ibc_transfer, etc.) accepted ‘mnemonic: string’ as an explicit tool-call parameter. The BIP-39 seed was consequently embedded in the LLM tool-call JSON, exposing it to any transport, log, or telemetry surface in the path between the LLM provider and the MCP process. This vulnerability is fixed in 0.x.y-security-1.

Severity: 9.8 | CRITICAL

Visit the link for more details, such as CVSS details, affected products, timeline, and more…